Preheat oven to 375 F.
In a bowl combine olive oil, salt, pepper, sumac, juice from 1 orange, garlic cloves and thyme. Stir to combine.
Dip chicken into marinade to coat evenly.
Slice the second orange into rounds. Place on the bottom of a skillet. Arrange chicken thighs on top.
Bake for 45 minutes, until the temperature of the chicken reaches 165 F and skin is crispy. Cook for longer, if needed.
Serve and enjoy!
